Examples of equations for practice for 12 year olds - page 32 of 59
Number of problems found: 1180
- Consecutive 6090
The sum of four consecutive even numbers is equal to 108. Which of the numbers is equal to the smallest of these summands? - Playing
How long have we trained on the pitch when we know that the warm-up took 10 minutes, we trained passes for one-third of the time, and we played football half the time? - A number
A number increased by 7.9 is 8.3 - Circumference 6040
The picture shows a square net in which the side of one square is 1 cm long. Draw a rectangle with an area of 18 squares with a circumference of 22 cm.
- Complementary angles 2
Two complementary angles are (x+4) and (2x - 7). Find the value of x. - Investigation 6024
Kamil saved up to buy a new phone case, which cost CZK 390. He only put ten and twenty crowns in the cash box. After two months of investigation, he had 25 coins in his treasury. When he calculated the total value of all the coins, he found out that he st - Dependence 5997
Sound travels in the air at a speed of 330 m/s. Build a table of the dependence of the distance the sound travels in a given time (for 1 to 10, one second at a time). Write the equation of the relevant dependence. - Sister 5947
I was twice as old as my sister four years ago. How old am I today? - Question 5942
What number should be added instead of the question mark 25/45 =? / 24. And how do we find out?
- Fractions
Three-quarters of an unknown number is 4/5. What is 5/6 of this unknown number? - Distribution 5932
One-half of the turnover is used for wages and one-third for production and distribution. After postponing CZK 100,000 for marketing, CZK 230,000 will remain. How high is the total turnover? - Tourist 5910
The tourist went on a hike of 8 hours at a speed of 5 km/h. At 9:30, a cyclist set off behind him at a speed of 30 km/h. When will they meet? - Tickets 5872
Three cinema tickets are 24 € cheaper than seven tickets. How many cinema tickets can we buy if we have € 32? - Flour
Kim needs 3/4 cup of flour to make 12 cookies. How much flour would she need to make 60 cookies?
- President's 5862
For the opening ball of the season, the president's wife bought a necklace with a bracelet for 768 euros. How much did the necklace cost, and how much did the bracelet cost if the bracelet was 40% off a) cheaper, b) more expensive than the necklace? - Applications 5859
2600 pupils applied for admission interviews, which was 130% of the expected number. How many applications were expected? - Harvesters 5853
One combine harvester harvests a wheat field in 12 hours, and another combine harvester in 16 hours. How long does the same field harvest the third combine harvester alone if all three harvesters harvest the wheat field in 2 hours? - Difference 5847
I reduced the unknown number by five and multiplied the result difference by three. Finally, I increase the resulting product by six and get the least common multiple of the numbers 3 and 8. Calculate the unknown number. - Together
Grandfather, father, and son are carpenters. They decided to make a wardrobe. Father produces it for 12 hours, his son for 15 hours, and grandfather for 10 hours. How long will they make it together?
The empty tank is filled in 12 minutes and empty in 16 minutes. If we forget to close the drain, how long does it take to fill? The tank has 1000 liters of volume.Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
